Process for cleaning ollas



Jan. 20, 1931. R. w. MCCARTY ET AL 1,791557 PROCESS FoR CLEANING QLLASFiled March 8, 1929 v 2 Sheets-Sheet l ruk Jan 20, 1931. R. w. MccARTYET AL 1,789,657

PROCESS FOR CLEANING OLLAS Filed March 8. 1929 2 Sheets-Sheet 2 uf, 4 f1The @regent invention; retti-esto improve:

nsgdineyaporatve Wattevroplelgs.Ik Y v @Hasi vare @Gush-.uwen @tf-,Clayfan-d4 f are# burnedinfn fkifln tof ofthe .oll An .olla 'Sweatectionztlf nuttigen Y cintedn it. :ldsg personita blieye that theWaterQontaL-nefd Yin thev 00016111 also,l lhasa cef ent therein.:

V j Itis thereforegone ofthe vp f evaporative@Waterfowlchemical..reactiontakes 'from dsk;

injuring the @lla o' resulting -inlhav'vinglan El? t 9;,- f

feet upon Athe- ,Wnter .thtti'sloontA ned: ollanhenlthe :Same '511s dYtrib -tolprovlde at tre rocesy fnrlclanmg n Ov .Y ,jcamrigd fontipenindusl f Figure isy' Sectional,vewthronghfgft- ,Vlew s howingfthemanner 1 Figure .6

to accommodate approximately three-hundred andl sixty ollas and theollas are submergedV in the chemical solution in the tank 1V `forapproximately twelvehours. c After soaking in the chemical solutionk inthe tank I1", the" olla is removed Htherefrom and isplaced: withinvasuitable crock 2 that" 'p rests on arben'ch or the likeshown at 3 -inFigure 2; .However before the lollaisplaced k:au

, thepivoted plate-like member 4 `that extends acid treatedy olla "isremoved from the crock in the crock 2, the holeformed in thelside of theolla A adjacent therbottom thereof for receiving the usual faucet-is-closedy by a suitable stopper or bung B. This crock 2 is adapted tocontain a chemical solution conesisting of approximately v75% ofhydrochloric or u muriatic acid @and 2.5% water.

yDuev to thefbuoyancy of the o'lla,`mthe Vsame has a tendency to riseyupwardly 'in the crock 2 'and A:for the purpose of maintainingthe ollasubmerged in the chemical solution fin the crock,`we provide suitable'means, `such as acrosstheftopfof the crocky andalso across the open ,topYof theneck of'tlieollafin the manner asiclearly suggested 'inf'Fi' ure'2.

, 'Thesolla'is submergedin-Ythe a'ci solutionvv in the crock 2k foroneminute after which the andvplacedinthe sand. box 5 shown in Figure',andisand is rubbed over the outer surface ofthe olla to remove. orscrub the acid olii" asthe acidlfhas a tendency tol injure i the olla ifleftonthejolla :fora long p 4 c f ",Thernextcstep in carrying Out myimproved process resides in positioningthe olla ina polishing@ paratussuch as is showndia# grammatica lyjinv Figure 4 andwhichapparatusincludesapair yof vertically spaced `standards and'?vrespectively across the up# perends of .which is 'disposed a cross rodor 'barS` onwhichisslidably arranged the sleeve 91and carriedbythisisleeve'is 'the radially disposedarmlO that has associatedwith itsouter Vend, abrush unit denotedgenerall by r the numeralill,l Af-handle12 extends radially irornthe opposita'sideof thejsleeve 9l forVmanually:actuatingthe'bru'sh{11 over the outer surface of the ollaundergoing the vpolishing '-treatinent.` r

f Ths011ais'-he1d in thev polishing machine in a horizon-tal positionandto this end, the

closed'en'd' ofthe ollafisfarranged within a clamping head 13 carried bythe innergend of a rotatably drivenfshaft i 14 Vthat is journaledthrough a suitablebearingfl'*carried by the yvertical standard 6 andadrivepulley 17 is ,securedon'the outer end of this shaft 14 forconnection with a suitable drivingv mecha;-

nism' for rotating the shaft 14;V l I f 4Anaxiallyffmovable kshaft 18isarranged withiny aY suitable bearing '19 carried by the i other.uprighm anda suitabierrtatableeio.,

sure 20 is carried by; the inner endqfofthey axiallymovable shaft'18-for disposition with'- in4 the-open end'm theffolla. c,

outer surface of the The processurtlier immessi' i When the olla isproperly supported in the polishing apparatus, and the brush 11 is movedacross the outer surfaceof the cylinvdrical olla, during the rotationofthe olla,

the outer surface lof the olla will be polished evenly Yand during thepolishing operation,

sand maybe sprinkled 4on they olla to leffect the removal of the acidfromthe outer sur-v face.

,The next Vstep in' the processconsists in submerging `the polished ollaina tank of water -2l1-shownin Figure 5 for thefpllll@Se of washingL'oli the sandthat remains von the I olla V(after. the polishingoperation.- y j contemplates thepro-` vision fof means for sterilizingand sweeten-v ing the olla' and l1:('Yt1-l1is end, we provide the benchor table`f22 tol which extends upwardly the air or steam jets'ornozzles28 having supply pipes 24fassociat`ed-therewith anda valve y25 ofany conventional construction isarranged in each supply-line. e

' The olla after beingremoved from the' tank 21 is positionedinlaninverted fmanneron theztop 'of the table'22l .over one of thepjets u ornozzles 23 so that steam ora ldryheating medium rwill be sprayed againstthe inner sur-v lfaces ofthe olla;

' 'After being subjected to this's'tea'in ory dry heat treatment, theolla is placed in a large tank :of "pure' "waterl where it"y remainssubrnergedior several `hours and uponV being'v removed from.this'tank ofwater, the" olla is thoroughly cleaned and may again bejused inevaporativewater vcoolers inthe same manner that a nevvolla is used.

Thechein'icl"reactionthat takesplace durling the secondV step Aof, theabove process may v be more clearly expressed by theffollowing formula:

' Gaooinsancizoucansino.-"

[be removed, then removing the'chefmical solution kfrom the-outer'surface ofthe olla, then brushing vthe outer-"surface f of the cleaned`It 'will thusbe seen from thefforegoing olla, and.''subsequentlya.submerging "thebrushed olla inrclear water; ,u l f 2. Aprocess for cleaning ollaso'r other clay productsfwhichhconsistsinsubjecting 5 thereof.v

i 10 face of the acid treated olla, torenve'the LCd'` l 15 tures.

o -Y l' outersurfaoe ofthe ollatofan .acid contan- ,Y ing solution, thensanding-'fand brushing `the l outer surface ofztheacidtreqted-o11ajtofre-f Y move the acid Solution from the'outersurfae 4 3.vAprocess for cleaning ollas or'otherelagyY Y productsv Whiohxconsistsin"subjecting the I outer surface of the olla to 'an acid con; tainingsolution, then sanding the outers'uril solution from theoutersur'faejthereothen e .brushing the 'olla' and subsequen l1y submerg ingthe brushed ollaY` n'clear Water. l

v In testimonyl whereof Weaixour ROBERT WALKEtMcCARTY e Y o i;CALVINWLLLIAM umonnrr.`

